package com.dt.dubai.core.filter;

import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 跨域访问配置 测试环境可以打开，生产环境需要关闭
 * Created by wangquan on 16/8/24.
 * 生产环境要注掉，开发环境要放开
 *
 */
@Component
@Order(0)
public class CORSFilter implements Filter {
    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) res;
        String originHeader=((HttpServletRequest) req).getHeader("Origin");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Origin", originHeader);
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Content-Type, x-requested-with, X-Custom-Header");
        response.setHeader("Access-Control-Allow-Credentials","true");
        chain.doFilter(req, res);
    }
    @Override
    public void init(FilterConfig filterConfig) {
    }
    @Override
    public void destroy() {
    }

}
